The cause of the explosion is not known at this time.

By: KDKA-TV News Staff

PITTSBURGH (KDKA) — A man has been sent to the hospital with burn injuries after an underground explosion occurred Sunday morning.

Police say the man was working in a manhole in the 2800 block of New Beaver Avenue when the explosion happened around 11:15 a.m. Sunday.

When police and medics transported the victim, he was in stable condition and was showing awareness of his surroundings.

The cause of the explosion is not known at this time.

Stay with KDKA as we follow this developing story.